AU2016369994B2

AU2016369994B2 - Vehicle adapted for making mixtures of waste lubricating oil/fuel oil for the in situ production of bulk products, and associated process

Info

Publication number: AU2016369994B2
Application number: AU2016369994A
Authority: AU
Inventors: Camilo GARCIA G.; Luis Antonio LOYOLA IRRIBARRA; Diego MENDEZ A.; Fernando ZANGHERI G.
Original assignee: Enaex Servicios S A
Current assignee: ENAEX SERVICIOS SA
Priority date: 2015-12-15
Filing date: 2016-12-15
Publication date: 2021-12-23
Anticipated expiration: 2036-12-15
Also published as: BR112018012265A2; BR112018012265B1; MX2018007397A; AU2016369994A1; US20190084899A1; CL2018001638A1; WO2017100960A1; US11535573B2

Abstract

The invention relates to a transport vehicle designed preferably for producing a mixture of waste lubricating oils/fuel oil (ALR/FO), mounted preferably on a chassis and comprising at least one metal tank. The metal tank is divided internally into at least two compartments having respective wave-breaks, wherein each compartment comprises a pump system, a plurality of lines for recharging products, at least one quick-filling system for respective FO and ALR compartments, at least one manual traditional filling system, and the vehicle comprises at least one logical control system having at least one actuating panel, at least one actuating reel for the actuation of at least one hose, and at least one static mixer for the ALR/FO mixture having an overpressure safety system, wherein said safety system includes a recirculation system to the ALR compartment, a plurality of double-acting vent valves, at least one man access, at least one battery, a plurality of filters for the suction of recycled oils and at least two filters for direct supply to manufacturing equipment. The invention also relates to an associated process.

Description

James & Wells Ref: 309547AU

VEHICLE ADAPTED FOR MAKING MIXTURES OF WASTE LUBRICATING OIL/FUEL OIL FOR THE IN-SITU PRODUCTION OF BULK PRODUCTS, AND ASSOCIATED PROCESS FIELD OF THE INVENTION

The present invention relates to a transport vehicle and an associated process, where

the vehicle is intended for the production of ALR/FO (Waste Lubricating Oils/Fuel Oil)

mixtures for the manufacture of bulk explosives in situ

BACKGROUND

Over the past several years, global oil prices have been rising, due to increased demand

and limited resources. Oil is used in many of the stages of mining processes, including

the transportation of materials, meaning that a large quantity of oil is generated in situ.

As this oil has no new use, it is considered a contaminant for the environment.

Furthermore, these oils create waste storage problems, as removing them is costly and

time is needed to manage and process waste management permits. One effective way

of removing these oils is by recycling and reusing them in other processes. Recycling

plants have made it possible for oil to be replaced with recycled oil for the manufacture

of explosives, with savings of between US$ 400,000 and 750,000 per year, depending

on the percentage of oil replacement. These oils are known as waste lubricating oils

(ALRs).

During the explosives manufacturing process, oils from the operation of mining

equipment must be filtered during the collection stage. This stage is preferably carried

out through two filtering lines that start the process at 150 microns, continue at 125

microns, and finish at 105 microns.

During this explosives manufacturing process, degreasing agents and active tensile

agents, such as detergents or others, must not be added. Oils intended for this purpose

should not be mixed with waste oils, paraffins, or benzines that could affect the stability

James & Wells Ref: 309547AU

of the matrix. If the ALR is combined with water, water separation must be performed

through phase separation. Due to this, the filtering equipment has a blocked lance

perforated from 40 cm to only allow the suction of the oil phase. Subsequently,

evacuation is carried out using a "wiggins" system and must be transferred immediately

to a tank. A bottom dewatering system is preferably available to remove water and

precipitated sludge, recommended to maximize the efficiency of the process.

The problem with this type of filtering process is that most of it is carried out in fixed

plants or plants installed on site. This makes the process inflexible, as it is limited to the

capacity of the installed plant. In addition, a permanent supply of trucks with the

necessary inputs for the manufacture of explosives is required, making the process

inefficient.

In this sense, the state of the art has proposed mobile solutions, both in terms of transport

and the manufacture of explosives. For example, document CN1202390344 describes

a heavy and versatile ANFO mixing vehicle, including a body and chassis. The vehicle

also includes main storage systems and an auxiliary storage system, a dual-mixing

system and a control system. It also includes a pump system, a hopper, an ammonium

nitrate tank, where the storage systems include an auxiliary diesel tank, a sensitizing

solution tank and a pumpable water tank. This type of configuration allows multiple types

of explosives to be mixed and loaded and can be carried out by using different

combinations of different raw materials from the storage tanks, and by means of outlet

pipes and diffuser plates.

A similar solution is presented in document CN103319288. This document refers to a

vehicle adapted for mixing, which includes the vehicle body, chassis, which also

includes: main silo systems and auxiliary silo systems, auger mixing system and control

system. The vehicle also has a feed recirculation system for silo systems, an ammonium

nitrate silo and storage of physical density modifiers, and each silo in each compartment

is provided with a partition plate that divides the auxiliary storage systems into two

separate parts, including a diesel tank, a sensitizer tank, a clean water tank, with

James & Wells Ref: 309547AU

respective recirculation systems. The vehicle also includes an auger mixing system for

mixing explosives.

Document W02015199556 describes a procedure for the manufacture of ANFO, based

on ammonium nitrate and filtered and purified waste oil. The process involves the

following stages: The filter truck removes the waste or recycled oil from the collection

center; through a discharge hose the product enters through the man access of the truck

where the first 1 mm filtration is carried out; the waste oil is transported to the location

points of the explosives factory trucks; the filter truck pumps and drives the waste oil

through two 30 micron series filters (second filtration) and then through a gallon counter;

the filtered waste oil is expelled with a swing gun into the fuel-mixer tank of the explosives

mixer truck; the explosives mixer truck integrates the double filtered waste oil into the

ammonium nitrate to produce ANFO. To fulfill this function, the filter truck specially

developed for this process is made up of the following components: Cistern tank: used

for waste oil storage; Ventilation valve: used for oxygen inlet to the tank for free flow of

waste oil, pneumatically actuated; Four man access or upper inlet holes used for pre

filtration of recycled oil in a 1 mm solids retention screen; Mixer: used for mixing and

circulation of recycled oil; Cleaning valves: used to remove the sludge which forms at

the bottom of the cistern tank as a result of the union of particles that passed through the

first filter; Pump: used for the suction of the waste oil and pressurized delivery to the

mixing truck; Suction valve: used for the outlet of the waste oil to the pump; Suction filter:

used for the cleaning of the waste oil up to 0.5 mm; Hydraulic motor: allows the waste

oil pump to rotate; Contometer: allows the display of the gallons of waste oil being sent

to the mixer truck; Dispensing valve: used to control the filling of the mixer truck tank with

waste oil; and Chassis: vehicle used for the transfer of the components for the storage

and recirculation of waste oil.

Document CN2013148322 describes a vehicle or truck for a porous cold mixed granular

ANFO mix. This vehicle includes a chassis, exhaust pipes, hydraulic systems, radiator

assembly, fuel system, electric control system, fender assembly. The truck is equipped

James & Wells Ref: 309547AU

with a dry material tank. The dry material is transported through a body screw, an oblique

screw and a side screw. The fuel is moved to the side screw via a pump. After the side

screw mixes the dry material and fuel evenly, the mixture is transported to a blast hole.

The side screw is equipped with alifting cylinder and a balancing device and can ensure

high stability and high precision in the transmission of explosives.

Finally, document no. CN202415397 describes a vehicle for mixing and loading a mixed

emulsion of ANFO. This vehicle includes a body and a chassis, which also includes: a

primary storage system and secondary systems, an auger mixing system and a control

system, and pump-fed distribution systems. The main silo system comprises a base

emulsion, and deposits of modifiers of the physical density of ammonium nitrate. The

system includes a diesel auxiliary tank, which is equipped with a diesel pump. An auger

system supplies a sequentially arranged main auger conveyor.

All of these technologies can partially solve the problem, however, they do not allow

100% on-site production of the explosive, as they require additional elements. In

particular, the solution proposed by W02015199556 requires both a mixer truck and a

filter truck, making the process for manufacturing explosives on site more complex and

inefficient.

SUMMARY OF THE INVENTION

The present invention relates to a transport vehicle and the associated process, intended

for the use of ALR/FO (Waste Lubricating Oils/Fuel Oil) mixture, in any of the proportions

necessary for the manufacture of bulk product lines in situ, without having to resort to

the installation of traditional fixed plants or modular plants. The conventional process

considers a static, fixed installation with three tanks (20/30/20 m3), where an operator

previously manufactures the ALR/FO mixture of up to 20,000 liters, and the factory trucks

have to go to this point to load the mixture. There is no possibility of changing the

proportions of the mixtures until the already manufactured mixture is exhausted. In its

James & Wells Ref: 309547AU

processes, the plant recirculates this mixture in order to homogenize it; it works like a

service station.

This invention provides a series of advantages: it is more versatile than a fixed plant,

since it can be moved, it eliminates the use of supply trucks (for oil and fuel oil), which

are normally used in a fixed plant, and therefore reduces operating costs. This allows

the time for transferring the explosive materials to be reduced, and also reduces the

logistical and management time required for this. The invention can be re-supplied on

site to a factory truck, a range of mixtures can be manufactured according to the needs

of each customer, only what is actually required is manufactured, and, in principle, the

processing of a competent authority is not required for its operation. The technology is a

mobile plant and can be implemented at any mining site and eliminates the need for

storing explosive materials.

This invention also makes it possible for the operating costs to be reduced, while

increasing productivity. In environmental terms, the vehicle used in the present invention

helps the carbon footprint to be reduced, and therefore creates a sustainable solution for

the loading and use of explosives.

DESCRIPTION OF THE FIGURES

Figure 1 represents a perspective view of the entire vehicle, according to a type of the

invention.

Figure 2 represents a top view of the vehicle, according to a type of the invention.

Figure 3 represents a back view of the vehicle, according to a type of the invention.

Figure 4 represents a left view of the vehicle, according to a type of the invention.

Figure 5 represents an outline of the process carried out by the vehicle, according to a

type of the invention.

DETAILED DESCRIPTION OF THE INVENTION

James & Wells Ref: 309547AU

The present invention relates to a transport vehicle (100) and the associated process.

This vehicle (100) is preferably intended for the production of ALR/FO (waste lubricating

oils/Fuel Oil) mixture.

The vehicle (100) is preferably mounted on a chassis (200) and comprises at least one

metal tank (300), preferably made of stainless steel, where the tank (300) is divided

internally into at least two compartments (1, 2), the first compartment for ALR (1), the

second compartment for FO (2), with their own wave-breaks. Each of these

compartments (1, 2) has a capacity of at most 10,000 liters and can be expanded

according to the requirements. Each of the compartments (1, 2) in turn comprises a

respective recirculation system, i.e. an ALR recirculation system (3) and a FO

recirculation system (4). These recirculation systems (3, 4) are preferably operated

automatically, either through electric or hydraulic means. The compartments (1, 2) also

comprise a number of product loading lines, at least one rapid filling system (13) for

compartments (1, 2) of ALR and FO respectively, at least one traditional manual filling

system (11, 12), where the traditional manual filling system (11, 12) comprises an ALR

loading system (11) and a FO loading system (12). The traditional filling system also

includes the respective lids positioned on the upper layer of each compartment (1, 2).

The vehicle (100) also comprises a logical control system with at least one actuating

panel, preferably a touch panel, for the process control carried out by the vehicle.

The vehicle (100) also includes at least one actuating reel, preferably pneumatic, to drive

at least one hose, preferably with a Wiggins dispenser. The vehicle (100) also has at

least one static mixer (5), preferably with perforated discs. At least one static mixer (5)

is preferably made of polyamide (Tecnil or similar), with a length ranging from 50 to 100

cm (preferably 80 cm), and a diameter ranging from 30 to 50 cm (preferably 38 cm), with

an overpressure safety system, where the safety system includes a recirculation system

to the ALR compartment.

The safety system for the compartments (1, 2) includes a plurality of vent valves (15),

preferably double acting vent valves, at least one man access (14), at least one battery,

James & Wells Ref: 309547AU

a plurality of filters for the suction of recycled oil (6, 7, 8) and at least two filters (9) for

direct supply to manufacturing equipment, where the flow for these filters for the suction

of recycled oil (6, 7, 8) and filters (9) for direct supply comes from a distribution valve

(10), preferably a three-way valve. The energy required to drive the pump motors and

the automatic mixing control is provided by a battery pack with an independent charging

system, used to drive electric motors. In one type of the invention, the man access (14)

is preferably 500 mm with standardized lids for the transport of fuels. In one type of the

invention, there are preferably six filters for the suction of recycled oil (6, 7, 8) (two of

150 microns (6), two of 125 microns (7) and two of 105 microns (8)) and two filters for

direct feeding (9) to the manufacturing equipment, preferably of 75 microns. In one type

of the invention, the battery pack is comprised of batteries of at least 200 amperes.

The vehicle (100) also has at least one inspection scale (16) to allow access to the upper

part of the compartments (1, 2) and to the man access (14), and at least one anti-spill

tray (17) preferably located in the filter area, to reduce the risk of spillage to the floor

during operation.

The vehicle (100) operation begins when the operator fills each of the compartments (1,

2) of the tank (300) with recycled lubricated oil (ALR) on one side and with Fuel Oil on

the other. It is equipped with at least one rapid filling system (13) for filling, preferably a

Wiggins system. Failing this, the vehicle (100) can be manually filled via the lids

positioned on the top cover of each compartment (1, 2). The mixture to be used is

selected through the control panel. The control panel acts on the pump motors (3, 4)

through a variable frequency controller, with the mixture initially formulated by the

systems to activate ALR/FO mixtures, in variable proportions, preferably in proportions

of 50%/50% (option 1), 60%/40% (option 2) and 75%/25% (option 3), depending on the

quality and purity of the recycled oil. However, the mixing control and process system

allows for a range of mixtures, from 0% oil to 90% oil in the ALR/FO mixture.

The vehicle (100) for transport and associated process formulates, manufactures and

records the liters of ALR/FO mixture that are transferred to the explosives factory trucks,

James & Wells Ref: 309547AU

by means of a pneumatically actuating reel where the operator can handle the hose from

the dispenser with the rapid filling system. At that instant, the operator connects a quick

fill gun, preferably a Wiggins fill gun, to each of the explosives factory trucks, performs

the filling, and the system automatically cuts off when the tank of the explosives factory

truck is full.

LIST OF REFERENCES

(1) ALR compartment (2) FO compartment

(3) ALR pump system

(4) FO pump system

(5) Static mixer (6) Recycled oil suction filters (150 microns)

(7) Recycled oil suction filters (125 microns)

(8) Recycled oil suction filters (105 microns)

(9) Filters for direct feeding (10) Distribution valve

(11) ALR loading system

(12) FO loading system

(13) Fast filling system

(14) Manhole

(15) Vent valves

(16) Inspection scale

(17) Anti-spill tray

(100) Vehicle

(200) Chassis

(300) Tank

Claims

James & Wells Ref: 309547AU CLAIMS

1. A transport vehicle intended primarily for the manufacture of ALR/FO (waste

lubricating oils/Fuel Oil) mixture, preferably mounted on a chassis, and

comprising at least one metal tank, CHARACTERISED because said metal tank

is divided internally into at least two compartments having respective wave

breaks, wherein each compartment comprises a pump system, a plurality of lines

for recharging products, at least one quick-filling system for respective FO and

ALR compartments, at least one manual traditional filling system, and the vehicle

comprises at least one logical control system having at least one actuating panel,

at least one actuating reel for the actuation of at least one hose, and at least one

static mixer for the ALR/FO mixture having an overpressure safety system,

wherein said safety system includes a recirculation system to the ALR

compartment, a plurality of double-acting vent valves, at least one man access,

at least one battery, a plurality of filters for the suction of recycled oils and at least

two filters for direct supply to manufacturing equipment.

2. The vehicle according to claim 1, CHARACTERIZED because each of these

compartments has a capacity of at most 10,000 liters.

3. The vehicle according to claim 1, CHARACTERIZED because each of the

compartments includes a recirculation system

4. The vehicle according to Claim 3, CHARACTERIZED because the recirculation

system includes automatic activation

5. The vehicle according to claim 4, CHARACTERIZED because the automatic

activation can be either electric or hydraulic.

James & Wells Ref: 309547AU

6. The vehicle according to claim 1, CHARACTERIZED because the traditional

manual filling system comprises the respective covers positioned on the upper

cover of each compartment.

7. The vehicle according to claim 1, CHARACTERIZED because it also includes a

logical control system with at least one actuating panel, for process control

carried out by the vehicle.

8. The vehicle according to claim 1, CHARACTERIZED because the actuating

panel is a touch panel.

9. The vehicle according to claim 1, CHARACTERIZED because the actuating reel

with at least one hose is preferably pneumatic.

10. The vehicle according to Claim 9, CHARACTERIZED because the actuating reel

with at least one hose is a Wiggins dispenser.

11. The vehicle according to claim 1, CHARACTERIZED because it preferably has

six filters for suction.

12. The vehicle according to claim 11, CHARACTERIZED because it has two filters

for direct feeding to the manufacturing equipment.

13. Process for the production of ALR/FO mixture (waste lubricating oils/Fuel Oil) by

means of a transport vehicle preferably mounted on a chassis, and comprising at

least one metal tank, CHARACTERIZED because it includes the following steps:

a. fill at least two compartments of the tank with Fuel Oil (FO) on one side

and recycled lubricating oil (ALR) on the other, by means of a quick filling

system or by means of a traditional filling system, passing through a

plurality of filters for the suction of recycled oils;

b. select the mix to be used using a control panel;

James & Wells Ref: 309547AU

c. Mix the ALR/FO with at least one static mixer;

d. Formulate, manufacture and record the liters of ALR/FO mixture that are

transferred to the explosives factory trucks using a pneumatic actuating

reel;

e. Filter the mixture to be transferred through at least two filters for direct

feeding to manufacturing equipment;

f. connect a quick fill gun to each of the explosives factory trucks,

g. perform the filling; and

h. automatically cut off the filling when the tank of the explosives factory

truck is full.

14. The process according to Claim 13, CHARACTERIZED because the proportion

of the ALR/FO mixture ranges from 0% oil to 90% oil in the mixture.

15. The process according to Claim 14, CHARACTERIZED because the ALR/FO

mixture has a 50%/50% proportion

16. The process according to Claim 14, CHARACTERIZED because the ALR/FO

mixture has a 60%/40% proportion

17. The process according to Claim 14, CHARACTERIZED because the ALR/FO

mixture has a 75%/25% proportion